UPGRADED 2 LIGHT BEADS DESIGNThe Running Lights for runners adopted 2 ultra bright LED front lights, which are brighter than traditional running lights, 350 lumens flashlights provide 30m visibility. These USB Rechargeable Running Chest Lights are perfect for lighting the way at night, making your nighttime outdoor activities safer. USB RECHARGEABLE AND IP65 WATERPROOF:The running light package comes with a USB cable, then you can use it to charge any USB port. The dog walking flashlight is easily recharged by computer, power bank. The chest light for runners will be fully charged in 3 hours and the usage time is over 6 hours in low mode. LIGHTWEIGHT AND EXTREMELY COMFORTABLE: The running lights for runners weighing only 225 g, you'll even forget you're wearing it. This running chest light with flexible strap and adjustable length for comfortable wearing. You can tighten and loosen the straps to suit your needs. GIFTS FOR JOGGERS: chest lights for runners are perfect accessories for night running, which can be used as running lights running lights, jogging lights, walking lights, etc. in the morning or in the dark evening. Not just for joggers or runners, step lights are a versatile and useful option for use at home and outdoors.